Filter pack having nonwoven filter media and nonwoven edge banding frame
US6846342B2 · kind B2 · utility
33Cited by
12References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/31
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter pack is formed of a pleated filter section and a top edge band and a bottom edge band that form a frame. The filter section and the frame are formed of a nonwoven polymer material, preferably a polyester material. The filter section is retained in the frame by an adhesive, preferably also a polyester material. The filter pack provides more filtration media per area, leading to more efficient filtration. The filter pack is fully shreddable and does not require separation into various components for recycling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.